html {
  font-size: 100px;
}

body {
  font-size: 14px;
  color: #000000a6;
  font-family: "Helvetica Neue",Helvetica,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","微软雅黑",Arial,sans-serif;
}

html, body {
  margin: 0;
}

a {
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

html, body, div, h1, h2, h3, h4, h5, h6, p, dl, dt, dd, ol, ul, li, fieldset, form, label, input, legend, table, caption, tbody, tfoot, thead, tr, th, td, textarea, article, aside, audio, canvas, figure, footer, header, mark, menu, nav, section, time, video {
  margin: 0;
  padding: 0;
}